it will still execute the outer for loop thereby requiring n number of steps to sort an already sorted array. This makes the best time complexity of insertion sort a linear function of N where N is the number of
class Solution { public: ListNode* insertionSortList(ListNode* a) { ListNode* dummy = new ListNode(-1); ListNode* node = a; ListNode* nextNode; ListNode* dummyHead; ListNode* prevDummyHead; while(node != NULL){ nextNode = node->next; dummyHead = dummy->next; prevDummyHead = dummy;...
shell sort的C语言代码如下: void shellsort(int v[], int n) { int gap, i, j, temp; for(gap = n/2; gap > 0; gap /= 2) for(i = gap; i < n; i++) for(j = i - gap; j >= 0 && v[j] > v[j+gap]; j-= gap) { temp = v[j]; v[j] = v[j+gap]; v[j+...
The working of the insertion sort is mentioned below:We will select the first element and assume it is sorted in the array. Let's name this element as elementA. Compare the next element with the elementA.If the second element is less than the elementA then place the second element in the...
#include<stdio.h>#include<stdlib.h>voidswap(int*a,int*b){int temp=*a;*a=*b;*b=temp;}voidinsertion_sort(int arr[],int n){int i,j;for(i=1;i<n;i++){j=i;while(j>0){if(arr[j-1]>arr[j])swap(&arr[j-1],&arr[j]);j--;}}}int*rand_n(int max,int n){int*temp=...
#include<bits/stdc++.h> using namespace std; void insertion_sort(int arr[],int length) { for(int i=1;i<=length-1;++i)//默认arr[0]为第一个有序序列 { int key=arr[i];//用key(钥匙) 表示待插入元素 for(int j=i-1;j>=0;--j)//用key与有序列中的元素逐个比较后进行插入,插入到...
Insertion Sort Gym - 101955C 思路+推公式 题目:题目链接 题意:对长为n的1到n的数列的前k个数排序后数列的最长上升子序列长度不小于n-1的数列的种数,训练赛时怎么都读不明白这个题意,最后还是赛后问了旁队才算看懂,英语水平急需拯救55555 思路:明白题意后就很容易了,有一个坑点是k可能比n大,所以我们...
{//////直接插入排序法//////publicstaticvoidStraightInsertionSort(int[] array) {for(inti =1; i < array.Length; i++) {intitem =0; item=array[i];for(intj = i-1; j>=0; j--) {if(item <array[j]) { array[j+1] =array[j]...
时间复杂度为O（n），而时间复杂度为O（n. log（n）），因此，在任何情况下，MergeSort的时间复杂...
insertion sort 从头开始的指针i,保证其左侧都是in order的,右侧都是not yet seen的。i++,若此数比i小,则与i交换,若还比起左边的小,则再与左边的交换…… insertion sort的运行时间决定于输入的order,而不像selection order那样无所谓为nn/2。insertion sort平均 大概为nn/4,最好的情况是输入恰好in order...